Presenters: Jacob Heck, Laura Rear McLaughlin, Terese Herron, Michael Michalski
Vertical datums provide reference for determining elevations. In the next few years, NGS, CO-OPS, and partner agencies in Canada, are updating three vertical datums:
the North American Vertical Datum of 1988 (NAVD 88),
the geodetic vertical datum that will be replaced by the North American-Pacific Geopotential Datum of 2022 (NAPGD2022);
the International Great Lakes Datum (IGLD) used to reference water levels in the Great Lakes and connecting channels; and
the National Tidal Datum Epoch (NTDE) used to reference water levels along the U.S. Ocean Coastline.
This webinar gives an overview of these datums and the changes that are coming.
*Technical Content Rating:Beginner - No prior knowledge of this topic is necessary.